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Author Topic:   Dauntless 15: Maximum Transom Weight
boatn posted 09-09-2006 09:33 PM ET (US)   Profile for boatn   Send Email to boatn  
Is the final verdict in? How much engine weight can you put on a 15 Dauntless? I can get a good deal on a Mercury 75-HP four-stroke. I'm thinking about putting it on my 15 Justice/Dauntless. The NADA site shows the weight of Mercury's 75-HP four-stroke as 384-lbs. Do you think that is too heavy?
Perry posted 09-09-2006 11:29 PM ET (US)     Profile for Perry  Send Email to Perry     
Yes, I'd look for a motor closer to 300 lbs.
Mambo Minnow posted 09-10-2006 07:46 AM ET (US)     Profile for Mambo Minnow    
I sold my [DAUNTLESS 15] to fellow forum member Ali. He re-powered to an Evinrude E-TEC 75-HP from my Mercury 60-HP two-stroke. Delighted with results. I believe the Mercury weighed 305 lbs. I really enjoyed the DAUNTLESS 15, and observed it was a very "tail heavy" boat. I agree with posts that too much additional weight on transom would lead to terrible trim and balance [problems].
jimh posted 09-10-2006 11:45 PM ET (US)     Profile for jimh  Send Email to jimh     
Many of the newer model boats from Boston Whaler have published specifications for maximum transom weight.
Stoopsy posted 09-11-2006 12:41 AM ET (US)     Profile for Stoopsy  Send Email to Stoopsy     
My D15 has a 50hp Honda which I believe wieghs 108kg or 238lb. I do not have any problem with the scuppers. I do not have trim tabs or a fin and find the handling more than acceptable. I must admit my knowledge with powerboats is limited. I feel my boat could use more power as it does take a time to get on to the plane and I can only get about 28kts WOT. My logic on repowering is this. I know the D15 works with the weight of a 50hp Honda. I would look at motors that wiegh the same as the Honda such as the ETEC 60. I wonder if anyone has experience with the ETEC 60? Also can anyone suggest what the performance difference would be between a heavier ETEC 75 and the lighter ETEC 60 on a D15?


PS I love the boat. It is easy to tow, behind my 1.6 litre Mercedes A Class. It is easy to launch. Most of all I have had it out in over 30 knots of wind on Port Phillip Bay and I felt safe. Port Phillip Bay has a diameter of 40 miles and is relatively shallow so it develops a savage chop. Its good to have a BW.

boatn posted 09-11-2006 01:25 PM ET (US)     Profile for boatn  Send Email to boatn     
The specs do say that max hp is 75, but max weight is 325 lbs. I was just hoping that someone had already tried a 75hp 4 stroke and had good results. Doesn't look like it so I guess I have to keep my eyes open for a good deal on a 2 stroke 75 hp.


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